Scuba diver back pack



FIG. 1 is a perspective view of the inner side of a scuba diver back pack showing my new design;

FIG. 2 is a perspective view of the outer side thereof;

FIG. 3 is a front elevational view thereof;

FIG. 4 is a rear elevational view thereof;

FIG. 5 is a bottom plan view thereof;

FIG. 6 is a top plan view thereof; and

FIG. 7 is a left side elevational view thereof, the opposite side being a mirror image. 

The ornamental design for a scuba diver back pack, substantially as shown and described. 